Class - 175 - Chemical Laboratory Equipment and Supplies
Subclass
03—Aprons, Laboratory: Plastic, Rubber, etc.
08—Balances and Accessories
10—Burners, Heat Guns, Hot Plates (with or w/o Stirrer), etc.
11—Cells and Cuvettes (Photometry/Spectrometry)
13—Chemicals, Laboratory, All
14—Chromatography Supplies: Columns, Standards, etc.
17—Containers (Liquefied/Compressed Gas), All
19—Crusher/Grinder (Metal/Stoneware), Mills, etc.
27—Electrode Sensing Meters and Electrodes: PH, etc.
28—Electrophoresis Supplies: Reagents, etc.
29—Extraction, Digestion, and Distillation Apparatus, Specialized: Kjeldahl, Soxhlet, etc.
32—Filtering Apparatus and Filters (Liquids)
33—Filter Paper and Membranes
36—Furnaces, Laboratory
39—Glass Pipe and Fittings
40—Glassware, Laboratory, Custom-Made
42—Glassware, Laboratory (Stock Only)
44—Glassware Washing Compounds
46—Holders, Glass Tube
54—Laboratory Supplies: All
60—Ovens, Laboratory
61—Oyster Shells (Testing)
62—Papers, Laboratory
65—pH Buffer Solutions, Indicators, and Papers
68—Plastic Ware, all types
70—Porcelain Ware, all types
71—Platinum Ware: Boats, Crucibles, Dishes, etc.
74—Reagents and Chemicals, Ultrapure
77—Sand, Cement Testing (Ottawa Grade)
78—Sieves, Sifters, etc., Accessories
80—Stainless Steel Ware, all kinds
82—Stirrers, Blenders, Homogenizers, and Shakers
84—Stoppers, Rubber and Synthetic
87—Thermometers, General Laboratory
89—Tubing, Plastic, All Types
93—Water/Steam Bath (Not Recirculating and Shaking)
95—Water Purification Apparatus and Treatments

Class - 180 - Chemical Raw Materials (Janitorial and Laundry Products)
Subclass
02—Abrasives: Feldspar, Pumice, Silica, etc.
06—Acids, Organic: Hydroxyacetic, Oleic, Stearic, etc.
08—Alcohols
12—Ammonium Hydroxide (Aqua Ammonia) and Amines
14—Antioxidants
20—Bacteriostat/Germicide (Not Quaternary Ammonium)
24—Bicarbonates and Carbonates
30—Brighteners, Fluorescent (Optical Bleaches)
34—Chelating/Sequestering Agent (Not Phosphates)
36—Chlorine Carriers, Inorganic and Organic
42—Dyes and Pigments
44—Emollients: Glycol Stearate, Lanolin, etc.
48—Fats, Vegetable Oils/Fatty Acids, All
54—Foam Stabilizers
58—Hydroxides, Alkali Metal
62—Latexes, Resins, Waxes/Polymers (Floor Finishes)
66—Mineral Oil, Petrolatum, etc.
70—Opacifiers
72—Perfumes and Essential Oils: Citronella, etc.
74—Phosphates, Inorganic
79—Quaternary Ammonium Derivatives (Antistats, Bacteriostats, Fabric Softeners, etc.)
84—Silicates
86—Sodium Carboxymethylcellulose (CMC) and other Cellulose Derivatives
88—Solvents and Coupling Agents
90—Sulfates, Inorganic
91—Surfactant, Amphoteric/Cationic: Detergents, etc.
92—Surfactant, Anionic: Organic Phosphates, etc.
93—Surfactants, Nonionic: Ethoxylated Alcohols, etc.
94—Titanium Dioxide, Anatase

Class - 190 - Chemical and Solvents, Commercial (Bulk)
Subclass
18—Acids, Mineral: Boric, Phosphoric, Hydrochloric, etc.
25—Alcohols: Ethyl, Isopropyl, Methyl, etc., and Glycerine
36—Chemicals, Bulk (Not Itemized)
40—Chlorinated Hydrocarbons: Trichloroethane 1-1-1, etc.
46—Formaldehyde Solution (Formalin)
60—Ketones: Acetone, Diacetone Alcohol, etc.
80—Silicone Fluids
85—Sodium Phosphates and Polyphosphates
90—Solvents (Not Itemized)

Class - 192 - Cleaners, Detergents, and Solvents Prepackaged
Subclass
10—Aromatic Hydrocarbon Mixtures (Cleaning Solvents)
20—Cold/Soak-Tank Cleaners (Heavy Duty)
80—Spray Detergents (Heavy Duty and Steam Cleaning)

Class - 193 - Clinical Laboratory Reagents and Tests (Blood grouping, Diagnostic, Drug Monitoring, Etc.)
Subclass
08—Blood Chemistry and Hematology Controls and References, Normal and Abnormal (Blood Gas Hemoglobin, Plasma and Serum Factors)
12—Blood Chemistry/Hematology Reagents/Supplies (Automatic/Semiautomatic Instruments): Counting Controls, Detergents, etc.
18—Blood Coagulation Reagents/Controls (Fibrinogen, Fibrin (Ogen), Prothrombin Time, etc.)
22—Blood Fractions (Grouping, Typing, Diagnosis): Reagent Red Cells, Sera, Antisera, etc
26—Blood Grouping/Typing Reagents: Antibody Potentiating Media, Copper Sulfate Solutions, Normal Saline, etc
36—Diagnostic Reagent/Supplies (Automated Chemistry)
40—Diagnostic Reagent/Test (Disease, Pregnancy, etc.): Cards, Slides, Spot Tests, Strips, Tablets, etc.
48—Drug Assay Kits (Except Radioimmunosassay)
52—Enzyme Immunoassay Reagents
88—Test Kit (Exam Body Fluids, Wastes, etc., not itemized)
94—Urinalysis Reagents/Tests (Albumin, Bile, Blood, etc.)

Class - 195 - Clocks, Timers, and Accessories
Subclass
18—Clocks, Electric, Commercial
50—Program Clocks, Bells, Lights, and Chimes
60—Stopwatches
68—Time Clocks, Recorders, Accessories, and Parts
74—Timers, Interval; Accessories, and Parts (Not Photographic or Laboratory)
80—Wall Clocks, Battery
83—Wall Clocks, Electric
88—Watchmen's Clocks and Supplies

Class - 200 - Clothing and Accessories (Athletic Apparel - Class 805-12; Fire Protection 340-10)
Subclass
03—Accessories: Ties, Handkerchiefs, etc.
04—Apparel, Winter: Hoods, Mittens, etc.
06—Aprons and Bibs, Cloth and Plastic
07—Bags, Clothing
09—Belts and Suspenders (Leather, see Class 520-40)
12—Caps, all types (Except Disposable)
15—Clothing, Disposable: Aprons, Caps, Coveralls, etc. (see Class 475-62 Hospital Disposable Clothing)
18—Coats and Jackets, Dress, Men and Women
19—Children's Clothing, All Types
21—Emblems and Shoulder Patches (Uniforms)
24—Gloves, Dress
27—Gloves, Work: Canvas, Coated, Leather, Rubber, etc.
30—Hats, Felt, Dress and Work, Men
39—Hosiery/Socks: Men and Women
40—Hospital Wear, Patient: Gown, Incontinent Brief, etc.
41—Hospital Wear, Professional: Lab Coat/Smock, etc.
42—Lingerie, Women: Gowns, Underwear, Pajamas, etc.
43—Prisoner Clothing
45—Rainwear: All Types, Windbreaker, etc.
48—Rainwear, Dress, Men and Women
57—Shirts, Dress and Sport, Men
58—Walking Shorts, Jump Suits, Casual Clothing - Men
60—Slacks and Suits, Dress, Men
63—Sweaters, Men and Women
66—Swim Suits, Men and Women
69—Underwear, Pajamas, and Robes, Men
72—Uniforms, Cotton/Blend: Fire, Trooper, etc.
75—Uniforms, Wool: Fire, Trooper, etc.
81—Ladies Apparel: Blouse, Dress, Shorts, etc.
82—Insulated Apparel: Coveralls, etc.
84—Work Apparel, Men/Women: Jeans, Coveralls, Jackets, Pants, Shirts, etc.

Class - 205 - Computers / Information Processing Systems, Peripherals and Supplies (Related Items Class 920)
Subclass
01—Computer/Software Manuals
02—Cables, Premade: Printer, PC, etc.
05—Central Process Unit (CPU): (CAD/CAM) - All Systems
09—Central Process Unit (CPU): Main Frame (Digital)
11—Central Process Unit (CPU): Microcomputer
13—Central Process Unit (CPU): Minicomputer
16—Communication Control Units: Multiplexor, Coupler, etc.
18—Communication Processor and Protocol Convertor
20—Computer Assisted Retrieval System: Micrographics and Digitized Records
24—Enclosure (Acoustical/Protective)
31—Direct Access Storage Device (DASD): Mainframe: Disk Controller/Disk Drive, etc.
32—Direct Access Storage Device (DASD): Microcomputer: Disk Controller/Disk Drive, etc.
33—Direct Access Storage Device (DASD): Minicomputer: Disk Controller/Disk Drive, etc.
35—Forms Burster, Decollator, Detacher, Feeder, etc.
36—Memory Add-on Units/Upgrades; Mainframe: Chips Boards, Enclosed Units, etc.
37—Memory Add-on Units/Upgrades; Microcomputer: Chips, Boards, Enclosed Units
39—Modems, Data Communications
40—Local Area/Wide Area Network Equipment, etc.
41—Optical Character Reader/Scanner/Device, Remittance Scanner/Processor, etc.
42—Monitor, Personal Computer
43—Peripheral Devices/Accessories (Not Itemized)
44—Point of Sale Equipment
45—Power Supplies, Surge Protectors, Uninterruptible Power Supply, Switches, Data Process Power Related Items
46—Imaging Equipment/Systems
47—Printer/Plotter: All Types, Plotter (Pen, Pen/Cutter)
48—Uninterruptible Power Supply/System
49—System Line Printers and Sub-Systems
52—Toner, Printer: Laser, etc.
54—Software, Main Frame: Preprogrammed
56—Software, Microcomputer: Preprogrammed
58—Software, Minicomputer: Preprogrammed
60—Software, Communication: Preprogrammed (All Systems)
62—Software, Data Base: Preprogrammed (All Systems)
64—Software, OS: Preprogrammed (Mainframe)
66—Software, OS: Preprogrammed (Microcomputer)
68—Software, OS: Preprogrammed (Minicomputer)
71—Supplies/Accessories, DASD Unit: Disk Packs, Floppy Diskettes, Disk Cartridges/Cleaners, etc.
73—Supplies/Accessories, Keyboard: Covers, Key Tops, Cleaners, Templates, etc.
75—Supplies/Accessories, Misc. Cases, CRT Holders, Glare Screens, Light Pens, Locks, etc
77—Supplies/Accessories, Plotter: Pens, Ink, Holders, etc.
79—Supplies/Accessories, Printer: Data/WP Wheel, Sheet Feeder, Form Tractor, etc.
81—Supplies, Data Processing Tape: Cartridge, Cassette, etc.
83—Supplies, Data Processing Tape/Disk Media: Cleaners, Containers, Labels, Racks, Write Protect Rings, etc.
85—Tape Unit/Sub-System, Storage Drive, Control Unit and Sub-Systems (All Systems)
87—Terminal/CRT, Graphic: All Systems
89—Terminal/CRT, Non-graphic: All Systems
91—Voice Response System and Peripherals

Class - 210 - Culverts (Concrete & Metal), Pipe, Poles / Accessories
Subclass
11—Blocks, Hollow and Solid, Normal Weight
13—Box Voids, Void Concrete Forms and Polyform
16—Concrete Beams,Plugs, etc., Prestressed
26—Concrete Utility Poles
27—Connecting Bands, Corrugated Metal
29—Culverts and Drainage Pipe, Corrugated Metal
30—Curbs, Parking and Curb Boxes: Vehicle
31—Ells, Tees and Valves, Corrugated Metal
32—Forms, Fiber Tube for Concrete Construction
35—Joint Sealing Compound (Sewer and Drain Pipes)
45—Meter Boxes and Concrete Pull Boxes
55—Paving and Stepping Blocks
62—Pipe/Culverts/Fittings (Over 4 Inches), Non-Reinforced
64—Pipe/Culverts (Over 4 Inches), Reinforced
66—Pipe and Fittings, Pre-Stressed Concrete
72—Risers, Reinforced Concrete
75—Septic Tanks, Grease Traps, etc.
80—Ties/Anchors/Other Masonry Wall Reinforcements

Class - 220 - Instruments / Equipment (Control, Measure, Record) and Supplies
Subclass
07—Clinometers/Inclinometers (Slope/Tilt Measure)
15—Flow Controller/Indicator/Recorder (Air, Gas)
16—Flow Controllers and Recorders (Liquids)
18—Gauges: Altitude, Pressure, Temperature, Liquid, etc.
33—Liquid Level Controllers, Indicators, and Recorders
42—Photoelectric Control Devices
43—Position Measuring Devices (X-Y Coordinates)
48—Radar Instruments (Marine), and Accessories: Magnetrons, etc.)
54—Recorders/Plotters, General Lab and Supplies: Chart Paper, Developing Chemicals, Ink, Pens, etc.
63—Strain/Force Gauges, Associated Instruments: Gauge Conditioner, Stress-Strain Plotter, etc.
72—Temperature Controllers, Indicators, and Recorders (Digital Thermometers, Pyrometers, etc.), and Accessories: Thermistors, Thermocopules, etc.
75—Transducers and Couplers
84—Vibration Detecting and Measuring Equipment: Geophones, Seismic Amplifiers, Seismographs, etc.
87—Weather Instruments: Anemometers, Barographs, Barometers, Hygrometers, Thermographs, Radar Weather Display, etc.

Class - 225 - Coolers, Drinking Water
Subclass
30—Cooler, Electric
40—Cooler, Storage (Remote Refrigeration Unit)
45—Cooler Repair parts, all types

Class - 240 - Kitchen Accessories (Utensils, Glassware, Etc.)
Subclass
07—Aluminum Ware: Cooking Utensils, Dishes, Trays, etc.
14—Beverage Servers, All Types
21—Chinaware
23—Condiment Shakers and Dispensers
28—Cutlery: Knives, Spatulas, Steels, etc.
35—Cutting Boards
56—Glassware, Table
63—Kitchen Utensils, Small: Basters, Corers, Ladles, Pastry Brushes, Peelers, Scoops, Tongs, etc.
70—Plastic Ware: Dishes, Trays, etc.
77—Silver Burnishing Equipment/Scour Pads, all types
84—Silverware: Flatware: Tableware, etc.
91—Stainless Steel Ware: Cooking Utensils, Flatware, Tableware, Trays, etc.
95—Thermometers, Cooking and Oven

Class - 245 - Cleaning Agents-Dairy Equipment
Subclass
05—Detergents/Sanitizers, etc. (Dairy Equip)

Class 250 - Test materials and Tabulating Cards
Subclass
18—Cards, Tabulating, Special (DP Systems)
80—Tests, Answer Sheets, Scoring Keys, etc. (EDP System)

Class 255 - Decals and Stamps
Subclass
20—Cigarette Stamp, Numbered
30—Decals, All Applications
40—Inventory and Other Small Decals
50—Liquor Stamps, Numbered
56—Tax Stamps (Other), Numbered and Un-Numbered

Class - 260 - Dental Equipment and Supplies
Subclass
04—Amalgams and Mercury
07—Cabinets, Furniture, Sinks, etc., Dental
11—Cements/Sealant (Cavity Lining, etc.)
16—Chemicals, Cleaners, Lubricants, etc., Dental
25—Dental Supplies
26—Dental Units/Components: Chairs, Handpieces, etc.
36—Grinding/Polishing Implements: Burs, Disc., etc.
43—Impression Materials: Alginate, Kits, etc.
46—Instruments/Devices (Endodontic, Orthodontic, Periodontal, General) Scaler, Carver, etc.
49—Lamps and Lights, Dental: Operating, Ultraviolet, etc.
56—Pharmaceuticals, Dental: Anesthetic, Antiseptic, etc.
79—Sterilization Systems, Dental: Autoclaves, etc.
82—Dental Accessories: Care Kits, Floss, Cups, etc.
89—Ultrasonic Cleaning Units, Dental Laboratory
96—X-Ray Equipment, Dental: Processor, Intensifying Screen, etc. (Chemicals/Film, see Class 898)

Class - 265 - Draperies and Upholstery Material (Including Automobile)
Subclass
10—Draperies/Curtains (Installed)
20—Draperies/Curtains (Not Installed)
44—Upholstery Fabric, Furniture and Auto
46—Upholstery Vinyl, Furniture and Auto
80—Upholstery Supplies: Burlap, Foam, etc.

Class - 270 - Drugs, Pharmaceuticals and Biologicals
Subclass
07—Alcohols, Ethyl (Absolute, Rubbing, etc.) and Isopropryl
13—Biologicals: Antitoxin, Immune Serum, Vaccine, etc.
16—Blood, Whole; and Blood Fractions (Transfusion): Plasma, Serum Albumin, etc.
18—Contraceptives/Devices, Nonprescription: Condoms, Foams, Jellies, Sponges, etc.
20—Contraceptives/Devices, Prescription: Diaphragms, Loops, Oral, etc.
50—Drugs and Pharmaceuticals, Legend: Orals, Parenterals, Suppositories, etc.
55—Drugs and Pharmaceuticals, OTC: Analgesics, Antacids, Gargles, Laxatives, etc.
68—Nutritional Products (Not IV Feeding): Athletic Beverages, Infant Formulas, Vitamins, etc.
74—Topical Products: Emollient/Hypoallergenic Bath Oils, Creams, Shampoos, Skin Cleaners, etc

Class - 271 - Drugs and Pharmaceuticals (Parentaeral Administration and IV Solutions)
Subclass
04—Administration Sets and IV Additive Accessories
08—Administration Sets, Special Use: Controlled Flow, Solution Transfer, etc.
28—Diets, Complete, Liquid/Supplemental (Oral/Tube)
30—Enteral Administration Systems (Tube Feeding, etc.)
32—Extension Sets
35—Filter Sets and In-Line Filters
56—Irrigation Solutions and Sets
68—Nutritional Product IV Solutions: Amino Acids, Fat Emulsions, Protein Hydrolysate, etc.
84—Sets, IV Pumps: Peristaltic, Metering, etc.
92—Specialty Solutions (Not Itemized)
96—Standard IV Solutions: Dextrose, Ringer's, Sodium, etc.

Class - 280 - Electrical Cable and Wire (Electronic - see Class 287)
Subclass
08—Appliance, Fixture and Portable Cables and Wires (Up to 600V): Types, S, SJ, SJO, SPT, TF, TFF, etc.
16—Bare Cable/Wire: ACSR, Bare Copper/Aluminum, etc.
24—Building Cable/Wire, Single/Multiconductor: NM, THWN, TW, THW, THHN, XHHW, RHW, RR, ROMEX, etc.
30—Control Cables/Wires, Solid and Stranded, Single and Multiconductor (Up to 600V, Boiler Controls, Fire Alarms, Motors, etc.)
40—Guy Wires/Cables: Guy Strand, SM, HS, EHS, etc.
50—Heating Cables/Wires (Up to 277V): Lead Covered, Neoprene Jacket, etc.
70—Telephone Cables/Wires, Single/Multiconductor, Clad Steel and Copper
75—Ties, Cable and Wiring
80—Underground Cables and Wires, Solid and Stranded, Single and Multiconductor, Aluminum and Copper: Types UF, URD, USE, XLP, etc.
90—Weatherproof Cables and Wires, Solid and Stranded, Single and Multiconductor, Aluminum and Copper: Types RR, WP, etc.

Class - 285 - Electrical Equipment and Supplies
Subclass
03—Arresters, Lightning
06—Ballasts, all kinds
07—Bulb and Fixture, Changer/Remover
08—Bus Bars, Duct, and Accessories
10—Cable Accessories: Clamps, Clips, Splicer, etc.
14—Circuit Breakers, Load Centers, and Panelboards
15—Coatings, Protective, Electrical
17—Conduit and Fittings, Fiber and Asbestos-Cement
18—Conduit and Fittings, Cast Iron
19—Conduit and Fittings, Plastic
21—Conduit and Fittings, Aluminum
23—Conduit Fittings, Steel: Box, Clamp, Connector etc.
26—Conduit, Steel
27—Control Devices, Lighting
28—Cutouts, Pole Line Type
29—Dimmers, Light
30—Exit Signs, Lighted
34—Fuses, Fuse Blocks and Holders, Links, etc.
35—Gaskets, Meter
37—Generators, Portable, Engine Driven
39—Generators, Stationary (Not Automotive)
40—Grounding Rods and Fittings
41—Hose, Protective Line
42—Insulation Materials: Compounds, Varnish, etc.
44—Isolation System (Computer Center)
46—Lamps, Automotive and Miniature
47—Lamps, Decorative, Household
48—Lamps: Desk, Floor, and Table
50—Lamps: Fluorescent, Incandescent, Mercury, etc.
51—Lamps, Scientific Instrument: Microscope, Oscilloscope, etc.
52—Lamps, Portable and Shop
53—Lens and Reflectors, Replacement
54—Lighting Fixtures, Indoor, All Kinds and Parts
56—Lighting Fixtures, Outdoor: Flood, Spot, Yard, All other Weatherproof Fixtures (Not Streetlights)
58—Lighting Units, Emergency, Battery; Batteries
61—Meter, Indicate and Record Power Consumption
64—Motor Controllers, Push Button Stations, Relays, Safety Switches, Starters, and Coils
68—Motors, Fractional H.P.
70—Motors, Integral H.P., Single Phase
71—Motors, Integral H.P., Three Phase
73—Relays (Non-Electronic)
74—Pole Line Hardware: Arms Bolts, Braces, Brackets, Clamps, Connections, Insulators, Washers, etc.
76—Streetlights and Standards
78—Structural Supports/Racks, Mechanical: Angles, Braces, Brackets, Channels, Clips, Fittings, Spring-Nuts, etc.
79—Switches, Miscellaneous
81—Tools, Electrician/Lineman (Cable Fault Locator)
84—Transformer, Transmission Line
86—Transformer (Power Distribution) See Class 287-66
89—Unilets
90—Voltage Regulators, Inverters, Converters, Spike and Surge Controllers, and Voltage Line Thermostats
91—Valves, Electro Pneumatic
93—Wire Molding, Raceways, Accessories, and Fittings
95—Wiring Devices: Adapters, Caps, Connectors, Extension Cords, Fluorescent Starters, Lampholders, Outlets, Plates and Covers, Plugs, Receptacles, Switches, Terminals, etc.

Class - 287 - Electronic Components/Accessories, Etc.
Subclass
12—Batteries and Hardware (Electronic Equipment)
36—Metal Items: Cabinets, Chassis, Panels, Racks, etc.
55—Power Supplies (Not Computer Room)
66—Replacement and Component Parts: Capacitors, Chokes, Coils, Panel Meters, Potentiometers, Relays, Resistors, Solenoids, Transistors, Transformers, etc.
72—Shelf Hardware, Electronic: Adapters, Clips, Jacks, Connectors, Dielectrics, Lugs, Plugs, Sockets, Solder, Switches, Terminals, etc.
90—Tubes, Electronic: Cathode Ray, Power, Receiving, Thyratron, Transmitting, etc.
96—Wire and Cable, Electronic: Audio, Coaxial, Hook-Up, Lead-In, etc.

Class - 290 - Solar Energy Systems and Accessories
Subclass
10—Cells, Solar (Photovoltaic Cells), Unmounted
82—Solar Energy Systems, Complete
90—Solar Water Heating Systems and Accessories

Class - 300 - Engraving
Subclass
20—Certificates and Awards, Engraved
36—Engraving, (Awards, Plaques, etc.) Not Name Plates
70—Stationery and Cards, Embossed and Engraved

Class - 305 - Engineering/Surveying Equipment, Instruments, and Supplies
Subclass
04—Blades, Gouges, Knives, Needle Files, Routers, etc.
06—Calculators, Surveying; (Office - see Class 600)
08—Cloths, Films, and Papers (Special): Cross Section, Graph, Log, Profile, Tracing, etc
10—Cloths, Films, and Papers (Stock): Cross Section, Graph, Log, Profile, Tracing, etc.
12—Cloths, Films, and Papers (Reproduction)
15—Covers (Drafting/Drawing Boards)
21—Direct Print Supplies, Dry Process
23—Direct Print Supplies, Wet Process
25—Distance Measuring Equipment
28—Drafting and Drawing Instruments
30—Drafting/Drawing Pencils, Pens, Leads, etc.
32—Drafting Machines and Scales
33—Drafting Supplies: Brushes (Dust and Wash), Cleaning Pads and Power, Paper Shears, Paper Weights, Steel Erasers, Transparent Protective Film and Tape, etc.
35—Drawing Boards, Curves, Protractors, Templates, Triangles, T-Squares, etc.
39—Duplicator Paper, Chemicals, Supplies (Diazo Process)
40—Engineering Copier/Printer
42—Engineering Supplies (Not Itemized)
44—Erasers and Erasing Machines, Electric
48—Field Books, Engineer
50—Field Equipment: Arrows, Bush Knives, Flags and Flagging, Hand Levels, Leveling Rods, Plumb Bobs, Pocket Transits, Range Poles, etc.
53—Graphic Art Type Supplies (see Class 700 - 30)
57—Lettering Equipment (Hand): Guides, Pens, Sets, etc.
58—Magnifying Glasses, Reading Glasses, Angle Mirrors, Prisms, Stereoscopes, etc.
60—Measuring Equipment: Chains, Maps, Optical Tapes, Wheels, etc. (Drafting/Map Files. See Class 425)
68—Planimeters
69—Projectional Supplies: Acetate Sheets, Films, Photo-Reflex and Photo-Modifier Materials, etc.
78—Surveying Instruments: Alidades, Compasses, Levels, Theodolites, Transits, Tripods, etc.
80—Surveying Systems, Geo/Satellite Navigation
84—Technical Pens and Sets, Points and Refills, etc.

Class - 310 - Envelopes
Subclass
06—Envelopes, Clasp, String, etc.
24—Envelopes, Plain, Special
30—Envelopes, Plain, Stock Sizes (Less Than 25,000)
36—Envelopes, Plain, Stock Sizes (25,000 and Over)
42—Envelopes, Printed, Special
48—Envelopes, Printed, Stock Sizes (Less Than 25,000)
54—Envelopes, Printed, Stock Sizes (25,000 and Over)
65—Envelopes, Seed, Metal or Plastic Closure
78—Envelopes, X-Ray Film Filing
90—Envelopes, Recycled (Paper)

Class - 315 - Adhesives and Coatings
Subclass
10—Adhesive (Concrete): Epoxy, Bituminous Hot Applied
30—Coating, Protective (Masonry)
70—Hardening Agents: Epoxy, etc.

Class - 320 - Fastening and Strapping, Accessories, Etc.
Subclass
10—Anchors, Expansion Shields, Toggle Bolts, etc.
20—Bolts, and Washers, Steel
22—Bolts, Nuts, and Washers, other Metal
35—Pins (Cotter, Dowel, Spring, Taper, and Woodruff Keys)
42—Nuts, Steel
50—Package Tying Machines and Parts
55—Powder Actuated (Explosive) Tools and Supplies
60—Rivets, all types (Except Brake Lining Rivets)
70—Screws: Cap, Machine, Set, Sheet Metal, Wood, etc.
75—Strapping, Seals, and Tools, (Metal)
83—Threaded Rod and Studs
85—Ties: Bar, Form, etc.

Class - 325 - Feed, Vitamins, Etc. (Animals)
Subclass
08—Bedding (All Types)
16—Cottonseed Products
20—Dehydrated Feed
25—Dog and Cat Food
28—Fish Food and Salt, etc.
32—Grain, Chopped or Whole, Unmixed
40—Hay and Straw
52—Mixed Feed, all types
56—Molasses, Stock Feed
72—Shell, Ground
84—Vitamins and Supplements

Class - 330 - Fence
Subclass
13—Chain Link/Accessories
49—Split Rail
65—Barbed Wire
91—Woven Wire
98—Recycled Products: Fence

Class - 335 - Fertilizers and Soil Conditioners
Subclass
06—Ammonium Nitrate
18—Anhydrous Ammonia
24—Animal and Marine
30—Blend/Dry Mix, Commercial (Formula-Type 2)
40—Fertilizers, Liquid, (Not Anhydrous Ammonia)
42—Granules/Pellets, Commercial (Formula - Type 1)
48—Limestone, Agricultural
54—Muriate of Potash (Potassium Chloride)
66—Phosphate, Agricultural and Triple Superphosphate
68—Potassium Permanganate, Agricultural
72—Soil Conditioners: Composted Cotton Gin Waste, Marine Humus, Sulfur, Synthetic Polymers, Mulch, etc.

Class - 340 - Fire Equipment and Clothing
Subclass
04—Backfire/Burn Equipment: Fire Torch, Flame Gun, etc.
08—Cabinet/Fire Extinguisher etc.
10—Clothing, Fire Protection (Turnout Gear, Helmet, Gloves, Boots, etc.)
12—Couplings, Fire Hose
14—Ejectors, Smoke
16—Fire Alarm Systems, Power Sirens, and Controls
18—Fire Blankets
20—Fire Detecting Equipment
28—Fire Extinguishers, Rechargers and Parts
32—Fire Hose Carts, Dryers, Racks, Reels and Rollers, etc.
35—Fireplows
36—Fire Pump, Back Carrying Type
40—Fire Suppression Hand Tools: Fire Axe, Rake, etc.
41—Fire Suppression Foam/Compounds
44—Firefinder, Forest
56—Hose, Fire, and Fittings, Coupled and Uncoupled
60—Hydrant, Fire
64—Nozzles, Fire Hose and Parts
80—Smoke Detecting Equipment
84—Sprinkler Heads and Systems
88—Valves, Fire Hose

Class - 345 - First Aid and Safety Accessories (Except Nuclear and Welding)
Subclass
06—Chemical Light, Emergency
07—Battery Chargers, Safety Equipment
08—Clothing, Belts, Chairs, etc. (Safety)
18—Emergency Showers and Wash Stations
24—Fireproof Curtains
32—First Aid Cabinets, Kits, and Refills
48—Gloves, Safety: Electrician's, Lineman's, etc.
56—Hats and Helmets, Safety
64—Head, Ear, Eye and Face Protection
68—Manikins and Models, First Aid and Safety Teaching
72—Masks, Filters, and Parts: Dust and Gas
73—Personal Distress Warning Devices
80—Respiratory Protection Equipment and Parts
84—Resuscitators and Parts and Portable Rescue Unit
92—Vest, Safety

Class - 350 - Flag and Poles
Subclass
30—Flag Poles, All Types
60—Flag, Safety and Warning (any color)
70—Flag, State and U.S.: Cotton, Nylon, Polyester, Wool
72—Flag, State and U.S.: Nylon, Rayon, Taffeta

Class - 360 - Floor Covering (Carpet & Tile), and Supplies
Subclass
05—Adhesive, Cement and Mastic
07—Base, Resilient (Cove and Straight)
10—Carpet/Installed: All Blends
15—Carpet/Not Installed: All Blends
17—Felt and Paper
22—Installation Items: Adhesive Strip, Seam Tape, etc.
25—Linoleum
28—Nonslip Floor Coverings: Mats, Rolls, Strips, etc.
76—Tile, Ceramic
77—Tile, Composition Asbestos-Vinyl

Class -  365 - Floor Maintenance Machines and Accessories
Subclass
10—Brushes and Pads, Floor Machine
15—Carpet Cleaning Machine (All Types) Accessories
25—Floor Stripping Machine (Remove Glued Floor Covering), Parts/Accessories
30—Polisher/Scrubber, Commercial Parts/Accessories
60—Scrubber (With Vacuum), Parts/Accessories
80—Vacuum Cleaner, Commercial (Wet or Dry), Parts and Accessories

Next Page: (List #3 370-510)